Literature Reference: 此是竺干教，先生垂典坟。——《和微之诗二十三首 和送刘道士游天台》 This is the teaching of Buddhism, handed down by the sages. Source from 'He Wei Zhi Shi Er Shi San Shou He Song Liu Dao Shi You Tian Tai'.
竺: Surname. The ancient name of India.
干:
Meaning: The teaching of Buddhism symbolizes wisdom and profound cultural heritage.